摘要:
The lithographic printing plate support includes an aluminum plate and an anodized film formed on the aluminum plate and micropores extend in the anodized film in a depth direction from its surface opposite from the aluminum plate. Each of the micropores includes a large-diameter portion having a predetermined shape and a small-diameter portion having a predetermined shape. The lithographic printing plate support has excellent scratch resistance and is capable of obtaining a presensitized plate which exhibits excellent on-press developability and enables a lithographic printing plate formed therefrom to have a long press life, and excellent deinking ability in continued printing and after suspended printing.
摘要:
Unlike related art in which a variety of recycling aluminum materials are directly inputted into a pre-rolling melting furnace, the present invention provides the step of melting used planographic printing plates (36) roughened by hydrochloric acid-based electrolysis in another melting furnace into a recycled metal ingot (74) having a predetermined shape and weight and the step of using the results obtained by analyzing the recycled metal ingot (74) to determine the mix proportions of the recycled metal ingot (74), the fresh metal ingot (12), and the trace metal master alloy to be inputted into the pre-rolling melting furnace. As a result, the amount of CO 2 produced at the time of manufacture can be greatly reduced, and an aluminum plate (16, 88) having an aluminum purity of 99.0% or higher, which is required in a hydrochloric acid-based electrolytic roughening, can be manufactured.
摘要:
Capacitor foil (10) having a core layer (11), at least one porous layer (12; 13) and a porous surface layer (16; 17), and a method for producing the same and an electrolytic capacitor. The at least one porous layer (12; 13) and the porous surface layer (16; 17) are porous as a result of a first DC-pulse etching process step. The method comprises at least one further etching step in which the etching fluid of the first etching process step in the at least one porous layer (12; 13) and the porous surface layer (16; 17) is modified into or replaced by a filling substance having a low etching capability, at least the porous surface layer (16; 17) of the foil (10) is further etched to increase the porosity of the porous surface layer (16; 17), and the filling substance is removed from the foil (10).
摘要:
Disclosed is a support for a lithographic printing plate which, when measured over a 400 µm x 400 µm surface region thereon using a three-dimensional non-contact roughness tester, has at most 5.0 convex portions of a height from centerline of at least 0.70 µm and an equivalent circle diameter of at least 20 µm, and has at least 800 concave portions of a depth from centerline of at least 0.50 µm and an equivalent circle diameter of at least 2.0 µm. Presensitized plates which are obtainable by using the support for a lithographic printing plate according to the present invention have an excellent scumming resistance and an extremely long press life.